Driving home Friday on the interstate 65mph suddenly noticed the throttle became unresponsive. Looked down at the gauges and see the oil pressure fluttering and falling. Threw it into neutral and coasted to a stop, the engine stalled as I cam to a stop. I kept one eye on the oil pressure as I was coasting to a stop and it never hit zero, maybe 10 seconds to get stopped.

I blew an oil cooler line and dumped most of the engine oil. After the tow home I spliced and patched the cooler line to assess the damage, filled with oil and it fired right up with full oil pressure. I took it around the block and as it warmed up the throttle response became weak and lost power to the point where it stalled when I released the pedal.

Next day I started again cold (struggled to start) and once again it seemed to run decent for the first 10 minutes with full oil pressure but once it warmed up, no throttle, no power and stalled (still had full oil pressure), would not start again warm.

It seems the engine bearings, cam, etc. survived the oil loss but not the IP.

Is there anything else I can check before removing the IP for rebuild ?

Suggestions?